In a response to a petition by concerned Canadian citizens regarding "chemicals used in aerial sprayings are adversely affecting the health of Canadians," the Government House Leader responded by stating, "There is no substantiated evidence, scientific or otherwise, to support the allegation that there is high altitude spraying conducted in Canadian airspace. The term 'chemtrails' is a popularised expression, and there is no scientific evidence to support their existence. The house leader goes on to say that "it is our belief that the petitioners are seeing regular airplane condensation trails, or contrails."
The chemtrail conspiracy theory holds that some trails left by aircraft are actually chemical or biological agents deliberately sprayed at high altitudes for purposes undisclosed to the general public in clandestine programs directed by government officials.[1] This theory is not accepted by the scientific community, which states that they are just normal contrails, and that there is no scientific evidence supporting the chemtrail theory